For linux msm/contents xml flashing

README.md

@@ -108,6 +108,28 @@ These can of course be combined with e.g. *--serial*.
 A subset of the installer package can be selected for installation by appending
 a **::storage1[,storage2...]** suffix to the file name.
 
+### Flashing contents.xml
+
+QDL also supports flashing builds described by *contents.xml* files:
+
+```bash
+qdl flash contents.xml
+```
+
+As the contents XML can describe the content for multiple storage types and
+multiple flavors, it might be necessary to select which content to flash. This
+is done by appending the **::specifier1,specifier2...** suffix to the file
+name. The specifier is matched against **storage types** and **flavors**. At
+most one resolved specifier per storage is allowed, and only the selected parts
+are flashed. As an example:
+
+```bash
+qdl flash contents.xml::ufs,safe_rtos
+```
+
+will flash the UFS storage with the only applicable flavor, and will flash
+*safe_rtos* onto the spinor.
+
 ### Flash simulation (dry run)
 
 Use the `--dry-run` option to run QDL without connecting to or flashing any